Home / 132,590.88-182,972.46-72,161.70

Finding the Fourth Proportional to 132,590.88, 182,972.46 and 72,161.70

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Solution

The fourth proportional to 132,590.88, 182,972.46 and 72,161.70 is: 99,581.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,590.88 : 182,972.46 = 72,161.70 : x
  2. Step 2: Convert to fraction form
    132,590.88/182,972.46 = 72,161.70/x
  3. Step 3: Cross multiply
    132,590.88x = 182,972.46 × 72,161.70
  4. Step 4: Simplify right side
    132,590.88x = 13,203,603,766.78
  5. Step 5: Solve for x
    x = 13,203,603,766.78/132,590.88
  6. Step 6: Final answer
    x = 99,581.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.